[93241] in North American Network Operators' Group
Re: CWDM equipment (current favorites) (fwd)
daemon@ATHENA.MIT.EDU (Deepak Jain)
Thu Nov 2 17:33:17 2006
Date: Thu, 02 Nov 2006 17:32:08 -0500
From: Deepak Jain <deepak@ai.net>
Reply-To: deepak@ai.net
To: alex@pilosoft.com
Cc: nanog@merit.edu
In-Reply-To: <Pine.LNX.4.44.0610311247210.8894-100000@bawx.pilosoft.com>
Errors-To: owner-nanog@merit.edu
>> We need to place a new order for some new fiber builds and were
>> considering some other vendors. Especially in the nx2.5G and nx10G (are
>> CWDM x-cievers even available in 10G yet?) range. Anyone have any new
>> favorites?
> 2.5G are only slightly more expensive than 1G - if you have OC48 gear that
> is SFP-capable, by all means, use that.
>
> 10G CWDM is *rumoured* to exist, but I don't think there are any
> production ones yet. Feel free to correct me. 10G is all DWDM, and so far
> very pricy.
>
I think this is the rub (regarding multirate optics). What I'd love to
be able to do is take a multirate optic and shove it into some 1U type
switch or router that takes several gigabits of a IP or Ethernet frames
and load balances them PPP or CEF style across a few 2.5/2.7G lambdas.
So say 10 gigabits of traffic over 4 lambdas. I don't need to replicate
GE signaling or SONET signaling... just move the bits. I know this is
very easy (trivial even) at 1G signaling rates, I never understood
[other than for markup purposes] why the vendors don't let those uplink
ports be 2.5G capable.
(I'm already aware of the cards that two 2G -> 1 multirate lambda. I
would like a box that does better than that as effective throughput on
the lambda -- it reduces complexity on our end and media conversion needs).
Any suggestions??
Thanks.
Deepak
